strings

Data
import "strings"

Implements functions for manipulating UTF-8 encoded strings. One of the most frequently used packages.

Example

package main

import (
    "fmt"
    "strings"
)

func main() {
    fmt.Println(strings.Contains("Hello", "ell"))  // true
    fmt.Println(strings.Split("a,b,c", ","))       // [a b c]
    fmt.Println(strings.ToUpper("hello"))            // HELLO
}

Key Types & Functions

ContainsSplitJoinReplaceTrimSpaceHasPrefixBuilder

About strings

The strings package (imported as strings) belongs to the Data category of Go packages. Implements functions for manipulating UTF-8 encoded strings. One of the most frequently used packages.

Go's standard library is one of the language's greatest strengths, providing production-ready implementations for networking, cryptography, encoding, I/O, and more. The strings package follows Go's philosophy of simplicity and composability — small, focused packages that combine through interfaces like io.Reader and io.Writer.

When using strings in production, follow Go best practices: handle errors explicitly, use context for cancellation and timeouts, prefer composition over inheritance, and write table-driven tests. The Go documentation at pkg.go.dev provides comprehensive API references and examples for every exported type and function.

Related Packages

bytesfmtstrconv